TY  - RPRT
TI  - Missing data in previously published article.
AU  - H Prochazka
AU  - H Agren
PY  - 2001
DO  - 10.1080/080394801317080882
UR  - https://pubmed.ncbi.nlm.nih.gov/11839129/
ID  - 11839129
ER  -